1422021120 has 160 divisors (see below), whose sum is σ = 4896061632. Its totient is φ = 350011392.

The previous prime is 1422021109. The next prime is 1422021179. The reversal of 1422021120 is 211202241.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1422021120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92719 + ... + 106961.

Almost surely, 2^1422021120 is an apocalyptic number.

1422021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2448030816).

1422021120 is an abundant number, since it is smaller than the sum of its proper divisors (3474040512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1422021120 is a wasteful number, since it uses less digits than its factorization.

1422021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282 (or 14266 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1422021120 is about 37709.6953050538. The cubic root of 1422021120 is about 1124.5238795132.

Adding to 1422021120 its reverse (211202241), we get a palindrome (1633223361).

It can be divided in two parts, 1422021 and 120, that added together give a triangular number (1422141 = T₁₆₈₆).

The spelling of 1422021120 in words is "one billion, four hundred twenty-two million, twenty-one thousand, one hundred twenty".